Question

In which of the following the central atom does not use $s{p}^3$ hybrid orbitals in its bonding:

• A. $Be{F}_3{}^{-}$
• B. $O{H}_3^{+}$
• C. $N{H}_2{}^{-}$
• D. $N{F}_3$

Answer 1

The correct option is A $Be{F}_3{}^{-}$

In the given options, ${BeF}_3^{-}$, $Be$ forms three sigma bonds with three flourines.

So, hybridisation of $Be$ becomes ${sp}^2$.

Hence, the correct answer is option $A$.